1. It is only possible to setup 1 printer as either 'Receipt' or 'Kitchen/bar', not both.
2. When you setup the printers as a 'kitchen/bar' you will be asked to select specific categories that it can only print to. For example lets say you have 2 printers setup as a 'kitchen/bar'.
a. The first printer has the 'Food' category selected which means all food products on the ticket will be printed to this printer.
b. The second printer has the 'Drinks' category selected which means all drink products on the ticket will be printed to this printer.
When the order is printed from the app then it will print the items accordingly to the printer that they are assigned to.